Arizona health officials are reporting a concerning rise in hantavirus infections. Hantavirus is carried primarily by deer mice and other rodents, and humans can become infected through direct contact with these animals or by inhaling dust contaminated with their droppings, urine, or saliva. The virus is particularly dangerous because it can cause hantavirus pulmonary syndrome (HPS), a severe and often fatal respiratory condition. Symptoms of HPS include fever, fatigue, and muscle aches, followed by severe respiratory distress and fluid buildup in the lungs, and carries a high mortality rate. This warning was issued to heighten public awareness so preventive measures can be taken to reduce exposure.